Eriez HS-42 Installation, Operation And Maintenance Instructions

Brand: Eriez

Model: HS-42

Type: Installation, Operation And Maintenance Instructions

Installation, Operation

and Maintenance

Instructions

Vibratory

Feeder

MODEL HS-42

HI-SPEED

ERIEZ WORLD HEADQUARTERS: 2200 ASBURY ROAD, ERIE, PA 16506–1402 U.S.A.

WORLD AUTHORITY IN SEPARATION TECHNOLOGIES

VM-3842H

CAUTION

Safety labels must be afﬁxed to this product.

Should the safety label(s) be damaged, dislodged

or removed, contact Eriez for replacement.

Introduction

This manual details the proper steps for installing, operating and

maintaining the Eriez HS-42 Vibratory Feeder.

Careful attention to these requirements will assure the most efﬁcient

and dependable performance of this equipment.

If there are any questions or comments about the manual, please call

Eriez at 814-835-6000 for Vibratory Feeder assistance.

Vibratory Feeder: Model HS-42 Hi-Speed

Table of Contents

ERIEZ VIBRATORY FEEDER - MODEL HS-42

INSTALLATION ..................................................................................................................4

Mounting ...................................................................................................................... 4

Electrical Connections ................................................................................................. 4

OPERATION AND MAINTENANCE ................................................................................... 4

Tuning Guide ................................................................................................................5

Tuning for Non-standard Trays ....................................................................................6

Tuning for Different Conditions of Tray Loading ........................................................... 6

REPAIRS ........................................................................................................................ 6

Coil Replacement ......................................................................................................... 6

Spring Replacement .................................................................................................... 8

Armature Replacement ................................................................................................ 9

TROUBLESHOOTING ..................................................................................................... 10

Installation

MOUNTING

This Hi-Vi model should be mounted on a ﬂat surface,

fastened with bolts or screws of proper size. Use lock

washers under the bolt heads.

FIGURE 1

ELECTRICAL CONNECTIONS

NOTE: The Eriez Vibratory Feeder cannot be operated

from a DC source.

All wiring should conform to all applicable electrical codes.

1. Check the speciﬁcations of the power line to be

certain that they are the same as those shown on the

nameplate of the control box.

2. Connect the black and white wires in the Feeder power

cord to the terminals in the control box marked “Output”.

3. Connect the green wire (ground) to the lug provided in

the box.

4. Connect the power line to the terminals in the control

box marked “Line”.

5. Connect the lug in the control box to a good earth

ground (a cold water line is excellent). If a well-grounded

metallic conduit system is used, the latter connection

may be dispensed with.

6. On multiple drive feeders (two or more drives on one

tray) all drives should be wired electrically in phase. The

black wires from each power cord should be connected

together and the white wires connected together. The

black wires should be connected to the positive side

of the single phase input voltage and the white wires

should be connected to the negative side.

YOU ARE NOW READY TO START YOUR VIBRATORY

FEEDER

FIGURE 2

COVER OUTPUT LINE GROUND

LUG

Operation &

Maintenance

Do not operate the unit with associated equipment

touching any part of the unit.

To start the feeder after all connections have been

made, apply power to the line connected to the feeder. If

a controller is used, operate the switch on the controller

and adjust the output voltage to maximum by rotating

the control knob to the full clockwise position. Ordinarily

(at ambient room temperatures) the unit will take about

two minutes to reach full steady-state displacement.

After full steady-state displacement has been attained,

use the controller to adjust the unit to the desired feed

rate.

No routine maintenance or lubrication is required,

except that any accumulation of foreign matter should

be periodically removed from between the tray-tiebar

assembly and the body, and from between the body

and the mounting surface, to prevent restriction of

movement of the vibratory elements.

IMPORTANT NOTE:

Special Trays and Attachments

Always consult Eriez before designing or constructing

special trays for your feeder drive. Also, contact Eriez

before modifying or attaching to any tray supplied by

Eriez. Changes made without Eriez’ prior approval will

void the warranty.

Vibratory Feeder: Model HS-42 Hi-Speed

TOTAL DISPLACEMENT

.012"

.090"

.060"

.030"

.105"

.075"

.045"

.015"

ERIEZ MFG. CO., Erie, PA

Stroke gauge under vibration

(shown at .090" displacement)

TUNING GUIDE

General Information

The tuning means is provided solely for the purpose of

mechanically tuning the unit, with its tray, to the desired

vibratory displacement at full voltage. When a unit is

furnished complete with tray, it is properly tuned to the

tray at the factory. Such tuning is naturally somewhat

different for trays of different size or weight.

Tuning is accomplished by changing the stiffness of

the tuning spring stacks of the feeder (see Figure 3).

Variations in stiffness are obtained by changing the

number of springs in the stacks and/or by changing the

thickness of ﬁberglass springs.

FIGURE 3

In normal operation at full voltage after warmup, the

total displacement for standard size trays, measured at

the back of the tray, is .085" to .090" (2.2 to 2.3 mm).

For trays substantially larger than standard this normal

displacement range should be reduced by .005" (.1 mm),

while for trays substantially smaller than the range may

be increased by .005" (.1 mm).

How to Measure Displacement

Position an Eriez displacement sticker on the outer side

of the tray, near the rear of the tray and at an angle of

25° from vertical (see Figure 4).

FIGURE 4

Deﬂection (Displacement)

With unit operating observe where the ﬁne gray lines on

the displacement sticker meet. This point will be higher

or lower as the displacement changes. Opposite the

point where they meet, read amount of displacement. If a

rule is used, the displacement can readily be measured

as a “blurred bar” at the back of the tiebar.

The following general rules, which apply only to the

warmed-up HS-42 feeder operating ideally on the normal

side of its tuning curve, should be borne in mind when

making tuning adjustments to increase or decrease the

displacement:

1. To DECREASE the tray displacement, DECREASE

the stiffness of the tuning springs.

2. To INCREASE the tray displacement, INCREASE

the stiffness of the tuning springs.

If decreasing or increasing the tuning spring stiffness has

an opposite effect, it means that the spring stiffness is

great enough that the unit is operating on the “opposite”

side of its tuning curve. The spring stiffness should be

reduced until the behavior is in accordance with rules

1 and 2. The unit can then be properly tuned to the

desired displacement.

As a guide to the stiffness of individual tuning springs,

each spring is marked with a code number- example,

5-27. The ﬁrst number (5) is the number of ﬁberglass

plies in the spring. The following number (27) indicates

the relative stiffness of the spring; the higher this number

the stiffer the spring.

The total stiffness of the tuning spring stack is the sum of

the relative stiffness numbers. By various combinations

of different ply springs having different relative

stiffnesses, practically any desired total stiffness can be

obtained.

TUNING FOR

NON-STANDARD TRAYS

(Note: See “Special Trays and Attachments”)

If it is necessary to tune the unit to an off-size or non-

standard tray, follow this procedure:

1. Attach the tray, making sure that all lockwashers are

in place and the fasteners tight.

2. Energize the unit at the nameplate voltage

and frequency.

3. (a) During tuning if a hammering or striking noise

occurs when the unit is turned off and on quickly,

the displacement is well in excess of normal.

Whether striking or not, if the displacement exceeds

the normal range for that particular size of tray

(see Tuning Guide-General Information), it must

be reduced by substituting a tuning spring leaf or

leaves of less stiffness, or by subtracting one or

more leaves, until approximately normal full voltage

displacement is attained. Then use the controller

for ﬁne or variable control of displacement and

feed rate.

(b) During tuning if the displacement at full voltage

is below the nominal range for that particular size

tray, and greater displacement is desired, increase

the tuning spring stiffness by substituting leaves of

greater stiffness or by adding more leaves.

TUNING FOR DIFFERENT

CONDITIONS OF TRAY LOADING

Units with Eriez-built trays are factory tuned for normal

displacement (approx. .085" (2.2 mm)) with light loading

(light head load, light materials, limited depth of ﬂow

of heavier materials), and ordinarily this tuning will not

need to be changed; however, in cases where somewhat

greater than normal loading is unavoidable, it may be

necessary to increase the tuning spring stiffness slightly

to maintain normal deﬂection under load. In no case,

however, should the unit be permitted to deﬂect more

than .090" (2.3 mm) without load.

CAUTION: A small amount of striking during

tuning is permissible, but must not be allowed

during regular operation since damage to the feeder

can result.

Repairs

COIL REPLACEMENT

Coil Replacement (Refer to the Parts List Drawing and

Figs. 5, 6, 7 & 8)

The coil in a Vibratory Feeder may eventually fail due to

over-voltage operation or normal aging.

The following procedure should be followed in removing

and replacing the electrical assembly, which includes

the coil:

1. Remove both nameplates and insert the two gap

spacers (furnished with the unit) between the

E-frame center leg and the two armature pole pieces

(see Figures 5 & 6).

2. Remove, in order, the bolts securing (a) the upper

end of the rear tuning spring stack to the tiebar, (b)

the lower ends of the spring lever arms to the body

housing, and (c) the lower end of the tiebar to the

spring bar. Lift the tray-tiebar-lever assembly away

from the body housing. (Fig. 7)

3. Remove the bolts securing the electrical assembly

to the body housing and lift the assembly out of the

body housing, (see Figure 8).

4. If the coil is defective, the entire E-Frame assembly

including the coil must be replaced (order from Eriez

parts list).

Vibratory Feeder: Model HS-42 Hi-Speed

FIGURE 6

AIR GAPS - ADJUST TO .093" (2.36 MM)

FIGURE 5

GAP

SPACERS

FIGURE 8

E-FRAME

ELECTRICAL

ASSEMBLY

COIL

BODY HOUSING

FRONT

SPRING

STACK

TIE BAR

REAR

TUNING

SPRING

STACK

FIGURE 7

5. In reassembling the unit, ﬁrst center the armature

at the bottom of the body cavity; then insert the

E-frame into the body cavity, making sure that the

center leg enters the space between the armature

pole pieces. Insert the bolts securing the electrical

assembly and fasten only ﬁnger tight.

6. Place the tray-tiebar-lever assembly into its original

position and replace, in order, the bolts securing

(a) the lower end of the tiebar to the spring bar, (b)

the lower ends of the spring lever arms to the body

housing, and (c) the upper end of the rear tuning

spring stack to the tiebar. Make sure that all tuning

spring spacers are in place and that all bolts are

tight. Note: Never add a lockwasher to a bolted joint

if that joint did not incorporate a lockwasher

as received from Eriez.

7. Loosen the electrical assembly bolts slightly and

roughly center the E-frame center leg between the

pole pieces. Insert the two spacers between the

E-frame center leg and the pole pieces and adjust

the electrical assembly forward or backward until

both spacers move freely in the gaps. Tighten

the electrical assembly plate and replace the

nameplates.

SPRING CHANGE OR REPLACEMENT

Refer to the Parts List Drawing and Figs. 9 & 10.

Although the non-metallic springs used in the HS-42

Feeder have outstanding life characteristics, failure may

eventually occur, especially if the displacement is greater

than normal. The symptoms of such failure will be:

1. Erratic behavior of the unit, or

2. Greatly reduced displacement.

If spring failure is suspected, the tuning spring stacks

should be removed after ﬁrst inserting the two gap

spacers between the center leg of the E-frame and the

two pole pieces (see Figure 9). The purpose of this is to

hold the tiebar or tray-tiebar assembly in position while

the tuning springs are removed.

Carefully examine each tuning spring for signs of

delamination or breakage, especially in the area next to

the spring shims. A failed spring can be recognized by

the appearance of the spring surface. If this surface is

discolored or has a patchy whitish appearance, perhaps

accompanied by surface bulging or other irregularity, the

spring is defective and should be replaced with a new

spring ordered from the parts list.

2. Carefully examine both springs for signs of failure

and replace if such signs are found. A failed

spring will exhibit one or more of the following

characteristics:

(a) Looseness of the spring combined with signs of

rubbing or abrasion at the outer surface of the

cylinder. Looseness of the metal sleeve.

(b) Small crack in the elastomer around the end of the

metal sleeve, possibly with small abraded particles

of the elastomer present.

and at the outer surface of the cylinder, possibly with

some outward bulging of the elastomer.

3. In replacing the elastomer springs, lay the unit on

its side so that the chamfered ends of the spring

holes are up. After making sure that the holes

and their chamfered ends are clean and free from

obstructions, lubricate the springs with a little soapy

water (never use a petroleum or silicone lubricant)

only and press them partly into place with the

thumbs. Then tap the springs back into place,

again using the small supporting block between

tiebar and work surface. Make sure that the springs

go in straight and that the steel inner sleeves

protrude equally at both ends of both spring holes.

See Figure 10.

ELASTOMER

SPRING LEVER

ARMS

ELASTOMER

SPRINGS

GAP

SPACERS

FIGURE 10

FIGURE 9

GAP

SPACER

REAR TUNING

SPRING STACK

If the feeder still exhibits signs of spring malfunction after

the tuning spring has been checked and replaced, check

the two cylindrical elastomer springs after ﬁrst inserting

the two gap spacers, then removing the spring lever

arms, and ﬁnally removing the elastomer springs in the

following manner:

1. Lay the unit on its side, making sure that the gap

spacers stay in place, and use a small hammer and

ﬂattened round bar or dowel to tap the elastomer

spring out of the body housing. Next, support the

tiebar with a small block between the tiebar and

work surface, and tap the spring out of the tiebar.

Vibratory Feeder: Model HS-42 Hi-Speed

4. Replace the lever arms, torque the two fastening

bolts securely, and remove the two gap spacers. If a

new elastomer spring has been installed, it may be

necessary to retune the feeder. See Tuning Guide.

CAUTION: Make sure that of the fasteners in

the assembly are tight or torqued at all times.

Periodic checks for tightness and torque should

be made to insure against possible malfunction or

damage due to loose parts. Without doing so will

void warranty.

ARMATURE REPLACEMENT

Refer to the Parts List Drawing and Figs. 5, 6, 7 & 8.

Prolonged striking may damage the armature to

an extent that it will have to be replaced. If this should

become necessary, order a new armature from the parts

list and begin by following the same instructions as for

coil replacement.

1. Continue by removing, in order, the bolts securing

(a) the upper end of the front tuning spring stacks to

the spring bar and (b) the spring bar to the armature.

2. Remove the bolts securing the elastomer diaphragm

to the body housing and lift the armature out of the

body cavity.

3. To reassemble the unit reverse the above procedure.

THE Hl-VI MAGNETIC DRIVE CIRCUIT

Old-style electromagnetic equipment has an inefﬁcient

attract-release type operation, where a mass mounted

on springs is attracted by a DC electromagnet and

returned to its original position solely by the springs.

The new Hi-Vi method incorporates a lifetime permanent

ceramic magnet and is operated directly from an

alternating current line.

In the Hi-Vi method, the spring-mounted mass is

alternately both attracted and repelled by an AC

electromagnet assisted by the springs.

Intermeshing a ﬁxed polarity permanent magnet with

an alternating polarity AC electromagnet eliminates the

rectiﬁer.

It will be noted that the pole pieces to the permanent

magnet are intermeshed in the air gaps of an

electromagnet. The polarity of the permanent magnet

is ﬁxed; the polarity of the electromagnet alternates at

the line frequency. We have shown the polarity of the

electromagnet as it would exist on one side of the sine

wave. Note that both poles of the permanent magnet are

being attracted toward the unlike electromagnet poles.

They are also being repelled in the same direction by

the like electromagnet poles. This results in four forces

accumulating to drive the armature in the same direction.

It also results in closing the magnetic circuit through the

electromagnet providing a magnetizing effect on the

permanent magnet on each side of the sine wave. The

demagnetizing force is very minor for the attracting force

and the magnetic lines of ﬂux would much prefer to be

attracted than repelled. This always tends to place the

permanent magnet in a magnetizing circuit regardless of

where the AC current is on the sine wave. As the polarity

of the electromagnet changes, all of the forces are

reversed and the permanent magnet armature is driven

in the opposite direction.

TABLE 1. TORQUE CHART

Part Bolt Size Torque

m-kgs ft-lbs

Rear Spring Bolts 1/2-13 10.4 75

Torsion Spring Bolts 1/2-13 10.4 75

Front Tie Bar Bolts 1/2-13 6.9 50

Front Spring Bolt 3/8-16 2.8 20

Electrical Ass’y Bolts 5/16-18 2.4 17

Tray Mounting Bolts 5/16-18 3.0 22

FIGURE 11

CAUTION: Operation from portable engine

driven power plants.

Varying and unstable line frequency has a diverse effect

on vibratory feeders because they are tuned mechanical

devices, designed around either 50 or 60 cycle

operating frequency. Shifts in the operating point due to

changes in frequency (+ or -1 cycle) can cause higher

than normal spring stress, striking, and high line currents

which can cause drive and tray failure. When operating

from portable engine-driven power plants, be certain that

the engine is up to speed and all other loads are started

and at running speed before starting the electromagnet

feeder.

The feeder should always be stopped ﬁrst when the

engine-driven power plant is shut down.

Troubleshooting

1. Misapplication

Feeder too small. Product difﬁcult or impossible to

handle. Impossible temperatures or atmospheres.

Impossible dimensional requirements. Feeding

requirements too precise or excessive. Consult

Eriez.

2. Tampering or Changing of Base or Tray

Improper disassembly, extensions, covers, weights,

screens or other modiﬁcations or attachments

may have affected performance. Reassemble in

accordance with printed instructions or consult

Eriez.

3. Loose Spring Clamp or Tray Mounting Bolts

Tighten all bolts.

4. Coil Failure

Replace coil or coil and E-frame assembly.

Order from Eriez parts lists. Follow maintenance

instructions carefully.

5. Control Failure

Check for burned out powerstat or rheostat,

defective capacitor, defective switch, loose wiring,

defective transformer (if used). Order new parts from

Eriez. Possibility special control needed. Consult

Engineering.

6. Incorrect voltage

Check nameplate speciﬁcations and line voltage.

7. Spring Failure

See maintenance instructions. Disassemble for

examination. Tuning spring failure will show up

as white areas. Order new parts from factory and

replace per instructions.

8. Foreign Material

Examine and remove foreign material.

9. Incorrect Tuning

See maintenance instructions. To decrease

displacement and output and eliminate striking,

use fewer or thinner tuning springs. To increase

displacement, use more or thicker tuning springs.

10. Poor or Broken Weld on Tray

Check and correct.

11. Incorrect Factory Adjustment

See maintenance instructions (Gap adjustments.)

12. Sympathetic Vibration in Other Equipment

Check and correct.

Vibratory Feeder: Model HS-42 Hi-Speed

13. Contact with Other Equipment

Check and correct.

14. Line Voltage or Hz Variation

Check and install voltage regulator if necessary.

Check and install Hz regulator.

15. Blown Fuse or Circuit Breaker

Check for short circuits and correct.

16. Other Electrical Connections

Check all connections and correct

17. Shockmount Deterioration

Check and correct.

18. Corrosive or Abrasive Material

May require special tray. Consult Eriez.

19. Product Variation or Product Sticking to

the Tray Surface

If product density, moisture content or other

characteristics vary, customer should take own

corrective measures.

Nature of Problem

Misapplication

Tampering or Changing

of Base or Tray

Loose Spring Clamp or

Tray Mounting Bolts

Coil Failure

Control Failure

Incorrect Voltage

Spring Failure

Foreign Material Between

Tray & Reaction Mass

Incorrect Tuning

Poor or Broken

Weld on Tray

Incorrect Factory

Adjustment

Sympathetic Vibration

in Other Equipment

In Contact with

Other Equipment

Line Voltage or Hz

Variation

Blown Fuse or

Circuit Breaker

Other Electrical

Connections

Shockmount

Deterioration

Corrosive or

Abrasive Material

Product Variation or Product

Sticking to the Tray Surface

Initial

Installation

Reduced or Low

Output 1 2 5 6 7 8 9 13 14 16 19

Noisy but

Output Okay 2 3 8 9 10 11 12 13

Noisy Certain

Periods Only 13 14

Develop After Satisfactory Initial Operation

Completely

Inoperative 2 4 5 7 13 15 16

Operating but

Reduced Output 2 3 5 6 7 8 9 10 12 13 14 16 17 19

Output Okay

Too Much Noise 2 7 8 9 10 12 13 14

Gradual Fading 5 7 8 9 10 13 19

Excessive Tray

Water 18

Turbulent Flow 10 14 17

Inconsistent

Output 2 3 5 6 7 9 10 12 13 14 16 17 19

TablE 1. SERvIcE chaRT

World Authority in Separation Technologies

Headquarters: 2200 Asbury Road, Erie, PA 16506-1402 U.S.A.

Telephone: 814-835-6000 • Fax: 814-838-4960

www.eriez.com e-mail: [email protected]

Manufacturing Facilities: AUSTRALIA • BRAZIL • CANADA • CHINA • INDIA • JAPAN • MEXICO • SOUTH AFRICA • UNITED KINGDOM • UNITED STATES

Eriez and Eriez Magnetics are registered trademarks of Eriez Manufacturing Co, Erie, PA

   

Eriez HS-42 Installation, Operation And Maintenance Instructions

Brand: Eriez

Model: HS-42

Type: Installation, Operation And Maintenance Instructions

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Eriez HS-42 Installation, Operation And Maintenance Instructions

Eriez HS-42 Installation, Operation And Maintenance Instructions

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